Stopper for hot-water bottles



A. B. SHAW S'I 'OPPER FOR HOT WATER BOTTLES Filed Nov. '7. 192T PatentedJune 10, 1924.

AI B. SHAW, OF MEDFORD, MASSACHUSETTS.

STOPPER FOR HOT-WATER BOTTLES.

Application filed November 7,1921. Serial. No. 513,449.

To all whom it may concern:

Be it known that I, Ar B. SHAW, a citizen of the United States ofAmerica, and a resident of Medford, in the county of Middlesex and Stateof Massachusetts, have invented certain new and useful Improvements inStoppers for Hot-Water Bottles, of which the following is aspecification.

This invention relates to stoppers for hot water bottles and the likeand has for its object the production of a device of the character whichwill be inexpensive to make, simple in construct-ion and which whenproperly positioned in the filling opening of the hot water bottle willeffectually prevent any leakage from the bottle.

The invention consists of a stopper provided with a washer-carrying diskrotatably mounted upon the inner end of the stopper.

The invention further consists in provid ing the inner end of thestopper with a bead over which is crimped the edge of a disk supportinga packing washer.

The invention further consists of a hollow stopper having an upwardextension formed integral therewith and adapted to be grasped by thehand to rotate said stopper. I. V

The invention further consists in certain novel features of constructionand arrangement of parts which will beunderstood readily by reference tothe description of the drawings and to theclaims to be here.- inaftergiven.

For the purpose of illustrating the invention, one preferred formthereof is illustrated in the drawings, this form having been found togive satisfactory and reliable results although it is to be understoodthat the various instrumentalities of which the invention consists canbe variously arranged and organized and the invention is not limited tothe precise arrangement and. organization of these instrumentalities asherein shown and described except as required by the scope of theappended claims.

Of the drawings:

Figure 1 represents a front elevation of a stopper embodying theprinciples of the present invention, said stopper being illustrated asapplied to a portion of a hot water bottle, which is shown in section.

Figure .2 represents a side elevation of said.v stopper.

Figure 3 represents a vertical section on line 3, 3, on Fig. 2.

Figure 4 represents a plan of the stopper.

Figure 5 represents an inverted plan of the same, and

Figure 6 represents a section of the lower part of the stopper, drawn toan enlarged scale.

Similar characters indicate like parts throughout the several figures ofthe drawings.

In the drawings, 10 is a portion of the upper end of a hot water bottlehaving embedded therein a threaded socket 11 provided at the bottom withthe inwardly .extendingflange 12.

A'threaded stopper 13 is adapted to be screwed into the socket 11 bymeans of the handle 14.

In the construction herein shown the threaded body portion 13 of thestopper and the handle portion 14' thereof are formed integral andhollow.

This handle portion 1 1 is preferably inade as shown in the drawingswith oppositely disposed concaved portions 15 which afford a good gripfor the hand when screwing the stopper into the socket 22 or removing ittherefrom.

The stopper may be formed, however, I

with the handle portion integral with the threaded portion 13 and withsaid handle provided with flattened or corrugated sur faces withoutaffecting the principles of the present invention.

Preferably the wallno f said handle portion 14 is provided with anopening 16 therein through which atmospheric air is adapted to pass intothe interior of the stopper to prevent said stopper from becomingoverheated by the hot water in the bottle 10.

The lower end of the threaded portion 13 of the stopper has an inwardlyextending flange 17 against the under face of which a disk 18 is adaptedto bear. I

The lower end of the threaded portion 13 of the stopper is also providedwith a peripheral bead 19 over which the edge 20 of the disk 18 iscrimped.

By means of this construction the disk 18 is held in position upon thethreaded portion 13 of the stopper and cannot beaccidentally displacedtherefrom while at the same time the edge 20 is crimped at the beadincense 19 in such a manner as to permit said disk to be ireely rotatedabout the axis of the stopper 13.

The disk 18 has riveted thereto a project ing stud 21, the lower end ofwhich is provided with a peripheral flange 22;

Between the flange 22 and the disk 18 is interposed a resilient washer23 which is adapted to be for ed into contact with the flange 12 andefiectually close the inlet opening of the water bottle 10 and preventany leakage therefrom.

When the stopper is being inserted into the socket- 11, the washer 23upon coming into contact with the flange 12 will remain stationary whilethe stopper continues to be rotated to compress the washer.

Heretofore in stoppers of this character, the washer is usually rotatedwith the stopper and soon becomes worn and useless.

As shown in the drawings the diameter of the washer is slightly lessthan the diameter of the crimped disk 18, 20 and said crimped disk 18,20 has a diameter slightly less than the interior diameter of thethreaded socket 11.

lVhen the stopper is being turned in th socket 11 no action on thewasher 23 takes place until said washer comes into contact with theannular flange or said socket 11.

When this contact between the washer and the flange 12 occurs thefriction be tween the two will prevent further rotation of the washer 23about its axis relatively to the flange 12 but the stopper 13 maycontinue to be rotated in the socket 11 thereby compressing the washer23 against the flange 12 and making a perfectly tight fit through whichno water can escape.

The washer is positioned upon the stud 21 by being stretched over thehead 22 of said stud, said washer having sufiicient resiliency to permitof such stretching.

Inasmuch as the disk 18 is interposed be tween the washer 23 and thebottom flange 17 of the stopper 13, the flange 17 will r0 tate incontact with the upper i' ace of the disk 18 which is of metal andtherefore not injured.

If this disk 18 were not interposed be tween the washer 23 and thebottom 17 of the stopper 13, the turning of the stopper while its bottomwas contacting with the washer, would cause considerable injury to saidwasher.

With the construction herein shown and described this objection iswholly overcome as the bottom of the stopper cannot come into contactwith the washer 23 when said washer has been brought into contact withits seat on the flange 12 and consequently the washer cannot be injuredby the stopper rubbing in contact therewith.

ln the stoppers now in general use, the packing disk is securedpermanently to the an when the stopper is rotated and disk is in contactwith its seat, contact is liable to injure and 7 the packing disk and asthere U means of renewing this packin i the entire stopper is uselessand an entirely new stopper must be provided.

in the present construction, should the washer become damagedsufi'iciently to make it useless, the damaged washer may be quicklyremoved and a new washer substituted therefor.

This sim ale construction of stopper is most effective in use for itmakes the hot water bottle positively non-leakable at its fillingopening and the life of the stopper is greatly prolonged.

Moreover, it provides a means whereby a new packing disk or washer maybe placed quickly upon the stopper thus making it unnecessary to throwaway the body of the stopper.

Another objection to the stoppers in general us is that when the washeror packing disk secured to the stopper, comes into con tact with theflange of the socket there will be so much friction between the washerand the flange that it will be extremely difficult to turn the stopperand yet this stopper must be turned in order to compress the washersufliciently to prevent leakage.

This objection is entirely overcome in the present invention as themetal end of the stopper turns freely while in contact with the disk 18.

It is believed that the operation and many advantages of the inventionwill be understood without further description.

Having thus described my invention, I claim:

1. A. bottle stopper having ahelicalthread and provided at the bottomwith a pcripheral bead terminating at its lower end in aninwardly-extending fiat flange; a disk the edge of which is crimped oversaid head and rotatable relatively to said flange; and

resilient washer clamped to said disk.

2. bottle stopper having a helical thread and provided at its lower endwith an inwardly extending flange and a peripheral head above saidflange, a disk bearing against said flange with its edge crimped oversaid head and freely revoluble about the axis of said stopper, a headedmember having a reduced shank extending through and riveted to saiddisk, and aresilient washer surrounding said member between its head andsaid disk.

3. A threaded stopper having a peripheral head at its lower end, saidbead having a diameter less than the threaded portion ofthe stopper; adisk with its edge crimped over said head and freely rotatable about theaxis of said stopper; a headed cylindrical member having a reduced shankextending through and riveted to said disk; and a resilient washerbetween said disk and the head of said member, and restrained frommovement relatively to said disk. I

4. A threaded stopper having an annular rojection at its lower end, adisk having its edge crimped over said annular projection and freelyrotatable about the axis of said stopper, a cylindrical member having atone nd a reduced shank extending through said disk and riveted thereto,and at its opposite end a head having a wide flat face, and a resilientwasher between said disk and the flat face of said head and surroundingthe 15 cylindrical body portion of said member.

Signed by me at 746 Old South Bldg, Boston, Mass, this 31st day ofOctober, 1921.

AI B. SHAW.

Witnesses WALTER E. LOMBARD, NATHAN C. LOMBARD.

